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You need to complete the following task:

Describe the most common causes for headaches.


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The most common causes of headaches include stress and tension, physical exhaustion, certain foods, caffeine withdrawal, dehydration, poor posture, eye strain, and neck or shoulder strain from sleeping in an awkward position. Additionally, environmental factors like loud noises, bright lights, and strong smells, as well as hormonal changes due to pregnancy or menopause, can cause headaches. Certain migraines can be caused by external triggers such as weather changes, allergies, or foods. Headaches can also be caused by medical conditions and medications.